Mathlib v3 is deprecated. Go to Mathlib v4

Theorem finite.card_le_one_iff_subsingleton

Modification history

2022-06-22 18:31
src/data/finite/basic.lean
refactor(data/finite/card): split from `basic` (#14885)
Modified finite.card_le_one_iff_subsingletonView on Github →
2022-06-10 05:26
src/data/finite/basic.lean
feat(data/finite/basic): `finite` predicate (#14373) …
Added finite.card_le_one_iff_subsingletonView on Github →